by LarryEWaiex121 » Mon Jan 20, 2020 9:39 pm
My impression after being part of the Sonex world for the last 12 years, is as follows. We seem to have a tremendous number of well meaning builders that embark upon a process of trying to modify their planes with no experience in doing so. Much of it based on word of mouth that so many things need to be changed to make it work.
Nothing could be further from the truth in my opinion. So much more safety could be had by builders, "following the plans" and getting their plane successfully operational.
This means safely getting some time under their belts and generally feeling out the various qualities of the planes design.
Only then after some time being acquired, (like after the 40 hour phase one) would one entertain the concept of gradual changes made to improve desired operational performance.
Too many builders have modified fuel systems, engine features beyond already tried and true. The majority of builders are sorely inept as test pilots. Too much building and very little flying fundamentals. Rusty would be a broad ranging word.
I simply shake my head in amazement at all the off runway excursions, flip overs, loss of control on takeoff, engine quits on take off for unknown reasons, fuel runs out (for obvious reasons), etc. These are self induced smacks in the forehead.
The Sonex community has a bad reputation for accidents. There is nothing fundamentally wrong with the plane. There IS a problem with folks that don't have any experience building, doing questionable mods with no engineering expertise.
I was all excited years ago trying to help some builders with their Aero-Injector set ups. I listened to their explanations of what was going wrong. Virtually every one I tried to help had simply started off by doing what their well intentioned friend told them, but none had set it up according to the instructions.
This example being my point. Many builders will head the direction of modification before executing what has been proven to work. It's all backwards and it is beginning to bite the group in the butt. Insurance is going up do to unsustainable losses. It could be different. The only way it will change is one builder at a time getting serious about understanding what they are doing and why. Not just a guess or some hype about another way being the ultimate answer.
Larry